This is the E-flite Park 480 Brushless Outrunner Motor, 910 kV. The Park 480 Brushless Outrunner motor is designed to deliver clean and quiet power for 3D park flyers 20- to 30-ounces (565- to 850-grams), scale park flyers 25- to 35-ounces (710- to 990-grams), or models requiring up to 250 watts of power. Its an especially good match for E-flite's Mini Edge 3D ARF and Mini Funtana 3D ARF, and would provide extreme power for sport park flyers such as the Mini Ultra Stick ARF.